fix(nextjs): simplify Turbopack detection using process.env.TURBOPACK

Author: asionesjia

packages/nextjs/src/client/index.ts

@@ -5,7 +5,6 @@ import { getDefaultIntegrations as getReactDefaultIntegrations, init as reactIni
 import { devErrorSymbolicationEventProcessor } from '../common/devErrorSymbolicationEventProcessor';
 import { getVercelEnv } from '../common/getVercelEnv';
 import { isRedirectNavigationError } from '../common/nextNavigationErrorUtils';
-import { isTurbopack } from '../common/utils/isTurbopack';
 import { browserTracingIntegration } from './browserTracingIntegration';
 import { nextjsClientStackFrameNormalizationIntegration } from './clientNormalizationIntegration';
 import { INCOMPLETE_APP_ROUTER_INSTRUMENTATION_TRANSACTION_NAME } from './routing/appRouterRoutingInstrumentation';
@@ -78,7 +77,7 @@ export function init(options: BrowserOptions): Client | undefined {
   }
 
   try {
-    if (isTurbopack()) {
+    if (process.env.TURBOPACK) {
       getGlobalScope().setTag('turbopack', true);
     }
   } catch {

packages/nextjs/src/common/utils/isTurbopack.ts

@@ -14,7 +14,6 @@ import {
 import type { VercelEdgeOptions } from '@sentry/vercel-edge';
 import { getDefaultIntegrations, init as vercelEdgeInit } from '@sentry/vercel-edge';
 import { isBuild } from '../common/utils/isBuild';
-import { isTurbopack } from '../common/utils/isTurbopack';
 import { flushSafelyWithTimeout } from '../common/utils/responseEnd';
 import { distDirRewriteFramesIntegration } from './distDirRewriteFramesIntegration';
 
@@ -96,7 +95,7 @@ export function init(options: VercelEdgeOptions = {}): void {
   });
 
   try {
-    if (isTurbopack()) {
+    if (process.env.TURBOPACK) {
       getGlobalScope().setTag('turbopack', true);
     }
   } catch {

packages/nextjs/src/edge/index.ts

@@ -37,7 +37,6 @@ import {
   TRANSACTION_ATTR_SHOULD_DROP_TRANSACTION,
 } from '../common/span-attributes-with-logic-attached';
 import { isBuild } from '../common/utils/isBuild';
-import { isTurbopack } from '../common/utils/isTurbopack';
 import { distDirRewriteFramesIntegration } from './distDirRewriteFramesIntegration';
 
 export * from '@sentry/node';
@@ -369,7 +368,7 @@ export function init(options: NodeOptions): NodeClient | undefined {
   }
 
   try {
-    if (isTurbopack()) {
+    if (process.env.TURBOPACK) {
       getGlobalScope().setTag('turbopack', true);
     }
   } catch {